JSFiddle - React, Tailwind, and code Playground

HTML

<div class="matrix matrix2 num1">
		<table width="100%">
			<tbody><tr class="Cdef">
				<td width="40%"></td>
				<td width="10%"></td>
				<td width="10%"></td>
				<td width="10%"></td>
				<td width="10%"></td>
				<td width="20%"></td>
			</tr>
			
			<tr>
				<td></td>
				<td>keine</td>
				<td>bis 2'000 €</td>
				<td>2'001 bis 5'000 €</td>
				<td colspan="2">über 5'000 € (Betrag in €)</td>
			</tr>
			
			<tr>
				<td>Nichtselbständige Tätigkeit (Lohn / Gehalt)</td>
				<td>
					<input type="radio" name="RegNicht" id="RegNicht1" class="k-radio" disabled="disabled" checked="checked">
					<label class="k-radio-label" for="RegNicht1"></label>
				</td>
				<td>
					<input type="radio" name="RegNicht" id="RegNicht2" class="k-radio" disabled="disabled">
					<label class="k-radio-label" for="RegNicht2"></label>
				</td>
				<td>
					<input type="radio" name="RegNicht" id="RegNicht3" class="k-radio" disabled="disabled">
					<label class="k-radio-label" for="RegNicht3"></label>
				</td>
				<td>
					<input type="radio" name="RegNicht" id="RegNicht4" class="k-radio" disabled="disabled">
					<label class="k-radio-label" for="RegNicht4"></label>
				</td>
				<td>
					<input type="text" class="k-textbox k-state-disabled" value="" placeholder="" disabled="disabled">
				</td>
			</tr>
			<tr>
				<td>Selbständige Tätigkeit / Gewerbebetrieb / Freiberufler</td>
				<td>
					<input type="radio" name="RegSelb" id="RegSelb1" class="k-radio" disabled="disabled">
					<label class="k-radio-label" for="RegSelb1"></label>
				</td>
				<td>
					<input type="radio" name="RegSelb" id="RegSelb2" class="k-radio" disabled="disabled" checked="checked">
					<label class="k-radio-label" for="RegSelb2"></label>
				</td>
				<td>
					<input type="radio" name="RegSelb" id="RegSelb3" class="k-radio" disabled="disabled">
					<label class="k-radio-label" for="RegSelb3"></label>
				</td>
				<td>
					<input type="radio" name="RegSelb" id="RegSelb4" class="k-radio"...

CSS

body {
	font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
	font-size: 12px;
	margin-left: 1%;
	margin-right: 1%;
	margin-bottom: 50px;
}

body table {
	border-collapse: collapse;
	border-spacing: 0;
	font-family: Arial, 'Helvetica Neue', Helvetica, sans-serif;
	font-size: inherit;
}


html .k-radio:disabled+.k-radio-label,
html .k-checkbox:disabled+.k-checkbox-label {
	color: #000000 !important;
}
html .k-radio:disabled+.k-radio-label {
	height: 16px;
}

html .k-checkbox:checked:disabled+.k-checkbox-label:active:before,
html .k-checkbox:checked:disabled+.k-checkbox-label:before,
html .k-checkbox:checked:disabled+.k-checkbox-label:hover:before,
html .k-checkbox:disabled+.k-checkbox-label:before {
	background-color: #fff;
	border-color: #ccc;
	color: #000;
	font-weight: bold;
}

html .k-checkbox:checked + .k-checkbox-label::before {
	content: "✓";
}
html .k-radio:disabled:checked + .k-radio-label::after {
	background-color: #333333;
	opacity: 1
}

html input.k-textbox,
html textarea.k-textbox {
	color: #000;
	/* font-style: italic; */
}





/*
	Style from .jsp
*/


section#matrix {
	font-size: 12px;
}

.clientHeader,
.clientHeader * {
	font-size: 100%;
}
.HTitle {
	line-height: 80px;
	font-size: 116%;
	text-align: center;
	font-weight: bold;
	height: 80px;
	
	position: relative;
}
.HTitle .logoprint {
	height: 80px;
	max-width: 120px;
	position: absolute;
	right: 0;
	top: 0;
}
.clientHeader .matrix table {
	border-spacing: 0;
	border-collapse:collapse;
}
.clientHeader .matrix td {
	padding: 5px 5px;
	border: #C9CAD4 thin solid;
}

tr.Cdef>td {
	border: none;
	height: 0;
}
tr.Cdef {
	height: 0;
}

.clientHeader .matrix td i {
	font-size: 92%;
}

.legalText {
	text-align: justify;
}

/* Form Style */
.div3 {
	width: 100%;
	white-space: nowrap;
}
.div3>div {
	width: 33.333333%;
	display: inline-block;
}
td {
	padding: 10px 5px;
	border: #C9CAD4 thin solid;
}


.div3 {
	text-align: center;
}
.div3>div:nth-of-type(1),
.div3>div:nth-of-type(2)...